Household garbage burner



March 25 1924. 1,487,943

, A. C. HOLMQUIST HOUSEHOLD GARBAGE BURNER Filed April 23. 1923 lia/lar.25, i924.

ALBERT C. HLMQIST, QF MINNEAPOLS, MINNESOTA.

HOUSSE QLD GARBAGE BURNER.

Application filed april T 0 all ich om it may concern?,

Be it lrnovvn that l, Alinear C. l-lomr QUrsT, a citizen of tne UnitedStates, rcsid ing Miu ipolis. in the county of Hennepin and Stale oflllinnesota, have invented certain new and useful linproveinents inHousehold Garbage Burners; and l do here by declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to inane and uscthe same.

My invention has for its object to pro vide a siniple but highlyetlicient garbage burner designed for household use and ein ploying oroil for its fuel.

il great objection to garliage burners as hitherto employed, using oroil, has always been that the drippings from the garbage would becontinuously dripping through the and collecting on the burner. oftenputting out the flaine and plugging upthe gas outlets, thus not onlybecoming inefiicient to burn the garbage but also inalring a dangerousexplosion proba` ble.

rlhe applicants invention was especially designed to eliininate thisdiliiculty and serve the other purposes above stated and, generallystated, consists of the novel devices and combination of devices hereindescribed and hereinafter pointed out in the claims.

My invention, in its preferred, forni is illustrated in the accoinpnying drawings wherein like notations refer to siniilar parte throughoutthe several views, and, in Which- Fig. 1 is a front elevation of thedevice;

Fig. 2 is a left side view, partly in elevation and partly in verticalsection;

Fig. 3 is a vertical cross section taken on the line 3-3 of Fig. 2;

Fig. 4 is a horizontal cross section taken on the line 4-4 of JlTig. 3;and

Fig. 5 is an enlarged detail cross section of a burner and a part of oneof the grate bars.

The numeral 6 indicates a suitable casing closed at its bottom, hereinshown of rectangular forni, supported on legs 7 and having a garbagereceiving door 8 preferably hinged to the top of the casing and a smokeoutlet 6 cut in the back of the casing near the top thereofY The inainand upper portion of the casing forms a garbage co1nbus- 1923. SerialNo. 633,825.

tion chamber' 9 having journaled, near its bottoni, parallel rockinggrate bars 10, of comb-like structure. These bars 10 have relativelyiride iinperforated central portions 1()a of concavo-convei; crosssection with their convex surfaces uppermost and toothed portions l0extending at each side thereof. The journals at the front end of thebars are extended through the casing and equipped with small cranks 11crossconnected by a suitable shaker link 11a, which permits the bars tobe rocked to shake out the ashes therefrom. A valved gas supply pipe 12enters the casing T slightly beloyv the grate bars 10 and connects witha series of gas burners 13 sup ported on a pair of angle bars 14 securedto the sides of the casing 6. These gas burners are preferably in theform of elongated pipes perforated on their upper sides and closed attheir extremities and situated directly below and vertically alignedWith the imperforated central portions 10a of the grate bars. of theburners designated by the numeral 13a are thus spanned by theimperforated portions 10n of the grate bars 10, but are radially drilledin the top of the burner pipes 13 so that when the burner is lit, the mflame jets Will strike the open toothed portions 10b of the grate bars1.0. vAn ash receiving pan 15 rests on the bottoni of the casing 6 andnarron7 guide strips 15a, encircling the inner perimeter of the casing 6and secured thereto just above the pan 15, guide all the ashes anddrippings into the pan 15. On the front of the casing, in horizontalalinement with the burner pipes 13, is a sinall door 16 to give accessto the burners and, just below the door 16, at the bottoni of the frontof the casing 6, is a large door 1.7 giving access to the ash pan 15 andequipped With a draft regulator 18.

lVith the above described construction, it is obvious that drippings orashes falling through the grate or shaken through the grate will notstrike or collect on the burners 13, since the latter are spanned by theimperforated central portions 10a of the grate bars directly above, butwill fall down between the burners 13 and into the ash pan 15. Theconvex shaped top surfaces of the central portions 10a of the grate barswill prevent drippings or ashes from collecting on the top thereof andwill cause them to slide down through the toothed portions rllhe gasoutlets or perforations n 10b of the grate bars, while the concave undersurfaces of the central portions will prevent the moisture and drippingsfrom running back underneath the grate bars and dropping down on theburners, so that all ashes, drippings and moisture must drop straightthrough the open portions l0" of the grate bars and between the burnersbelow.

The garbage is conveniently dumped i'n through the top oiI the casino'and may then be burned without danger ot the burners being put out orclogged up. Y

The device 1s especially adapted for household use and extensive actualusage has proven it to be highly eiiicient :tor the purposes above namedand described.

It will, of course, be understood that various changes in form, detailand arrangement orf parts may be inadc without depart ing from the scopeof the invention.

YV hat is claimed is:

l. i household garbage burner having in combination, a suitablecombustion chamber, a grate at the bottom ot said chamber having openportions and also iml'iertorate portions and a gas burner comprisingperforated pipes spaced beneath and vertically alined with saidimperiiorate portions anddirectly below the same having its gas outletsspanned by the imperforate portions or' said grate. f

2. A household garbage burner having in combination, a suitablecombustion chamber, comb-like grate bars at the bottom of said chamberhaving imperforate longitudinally extending portions oit concave-convexsection with their convex surfaces uppermost and a gas burner spacedfrom and directly beneath said imperioratc portions oi said grate barsand of less width than the same.

3. The structure set forth in claim 2, said iniperforated portionshaving spaced edges formed by downwardly directed surfaces whereby fluidwill drip therefrom outside of said gas burner.

4i. A household garbage burner having in combination7 a suitablecombustion chamber,

a. series of comb-like grate bars liournaled at the bottom ofsaidchamber having central iniperfora-te portions of concave-convexcross sec-tion with their convex surfaces uppermost, and a. series ofgas burners spaced from and vertically alined with said central portionsoi'j said grate bars directly beneath the same and havingv gas outletsspanned by said imperiorate portions and arranged to direct their 'flamejets into the open parts oi Y the. same, and haviim` their gas out-lets'spanned by said central grate portions but radially drilled in saidburner pipes and spaced so Ythat. their flame jets will strike the opentoothed portions of said grate bars.

6. A device ci the` class Vdescribed having in combination, a grate bar,a burner beneath said grate bar7 said bar having a longitudinal edgeformed by downwardly directed surfaces. said edge being out of verticalalinenient with said burner whereby any liquid will drop from said edgeand the drippings from said edge will not strike said burner. Y e Y 7. Adevice oi" the class described having -in combination, a grate bar, aburner spaced beneath and extending longitudinally oi saidV bar, saidbar having spaced edges at its l wer side said edges formed bydownwardly directed surfaces and being disposed outwardly ot said burnerwhereby any drippings from said edges will 'drip outside of said burner.Y

ln testimony whereof I aix myA signa-V ture.

ALBERT' C. HOLMQUIST.

